fixing automounted fat16 fs permissions

The old FAT filesystem, still used by many USB mass storage devices like my new USB key drive, does not have a good concept of permissions. That is: not even as good a concept as UNIX. It's common that the default behavior when mounting a FAT filesystem on unix is to set everything a+rwx. I'd rather not have files mounted a+x, so normally I could set a mask in my fstab options. On OS X, though an automounter is used that doesn't seem to be configurable on a per-filesystem-type level.

Is there no good way to reduce the maximum mode of a FAT filesystem's files?

The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
Without JavaScript enabled, you might want to
use the classic discussion system instead. If you login, you can remember this preference.